Hacker News MCP by Nova (CIVAI)
co.civai.nova/mcp-hacker_newsnova.civai.costreamable-httpv1.0.0Scanned
Browse Hacker News from chat: top stories, search, read comment threads, and post or upvote when yo…
12 tools: 4 change things and 8 only read.
- Reads private data · 1
- Reads text others write · 2
- Can send data out · 1
- No findings
Anlyon alternative
4 of these tools change something. Run those as governed actions.
Declare what an action changes, and Anlyon puts it under a shared limit, binds every approval to the exact request, and grades the outcome. It works on any HTTPS API you can describe as an action.
Anlyon does not run, proxy or govern this MCP server. A tool your own code calls directly is not routed through Anlyon and is not governed by it.
Import an OpenAPI spec →Tools
Grouped by what each tool does, most consequential first. Open one for its reasons and full description; descriptions are the publisher's own words.
12 tools
Changes things 4Claude Code: ask
loginSign in to Hacker News with username and password.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Sign in to Hacker News with username and password. Stores session cookie in hn_session_cookie for upvote, comment, and submit.
post_commentPost a comment on a story or reply thread.Can send data outNo findings
Why it is in this group
- The name "post_comment" says "post": a word for a change.
What it can reach
- outboundThe name "post_comment" says "post": it sends or publishes something to other people.
Description, as the server wrote it Post a comment on a story or reply thread. parent_id is the story or comment id. Requires login session.
submit_storySubmit a new story link or Ask HN text post.No findings
Why it is in this group
- The name "submit_story" says "submit": a word for a change.
Description, as the server wrote it Submit a new story link or Ask HN text post. Requires login. Provide story_url for link posts or story_text for text posts.
upvoteUpvote a story or comment by item id.No findings
Why it is in this group
- Nothing in its name or description says what it does, so it is counted as a write.
Description, as the server wrote it Upvote a story or comment by item id. Requires a valid hn_session_cookie from login.
Only reads 8Show 8 read-only tools
best_storiesFetch best-ranked Hacker News stories.No findings
Why it is in this group
- The description's first verb is "fetch": a word for reading.
Description, as the server wrote it Fetch best-ranked Hacker News stories. Use when the user asks for best posts or all-time greats on the best feed.
browse_feedBrowse an HTML feed on news.ycombinator.com: news, newest, ask, show, jobs, newcomments, front, or best.Reads text others writeNo findings
Why it is in this group
- The name "browse_feed" says "browse": a word for reading.
What it can reach
- untrusted-inputThe name "browse_feed" says "browse": it reads web pages, which anyone can write.
- untrusted-inputThe description's first sentence says "browse": it reads web pages, which anyone can write.
Description, as the server wrote it Browse an HTML feed on news.ycombinator.com: news, newest, ask, show, jobs, newcomments, front, or best.
get_itemGet one Hacker News item (story or comment thread) by numeric id, including top-level comments when available.Reads private dataReads text others writeNo findings
Why it is in this group
- The name "get_item" says "get": a word for reading.
What it can reach
- private-dataThe description's first sentence says "get" and "thread": it reads messages.
- untrusted-inputThe description's first sentence says "get" and "comment": it reads comments, which other people can write.
Description, as the server wrote it Get one Hacker News item (story or comment thread) by numeric id, including top-level comments when available.
get_userLook up a Hacker News user profile (karma, about, created date) by username.No findings
Why it is in this group
- The name "get_user" says "get": a word for reading.
Description, as the server wrote it Look up a Hacker News user profile (karma, about, created date) by username.
new_storiesFetch newest Hacker News story submissions.No findings
Why it is in this group
- The description's first verb is "fetch": a word for reading.
Description, as the server wrote it Fetch newest Hacker News story submissions. Use when the user asks for new or latest posts.
search_storiesSearch Hacker News stories via the public Algolia API (same backend as hn.algolia.com).No findings
Why it is in this group
- The name "search_stories" says "search": a word for reading.
Description, as the server wrote it Search Hacker News stories via the public Algolia API (same backend as hn.algolia.com).
session_statusCheck whether hn_session_cookie is present and still logged in on Hacker News.No findings
Why it is in this group
- The name "session_status" says "status": a word for reading.
Description, as the server wrote it Check whether hn_session_cookie is present and still logged in on Hacker News.
top_storiesFetch the current Hacker News front page (top stories) via the official Firebase API.No findings
Why it is in this group
- The description's first verb is "fetch": a word for reading.
Description, as the server wrote it Fetch the current Hacker News front page (top stories) via the official Firebase API. Use when the user asks for top, front, or trending stories.
This is not a safety rating, and no finding is not a safety guarantee. The groups and findings come from fixed checks of the tool definitions the server returned on the date shown, not from its code or what it does when called. How the checks work.
Exfil surface
Which tools read private data, which read text someone else can write, and which can send data out. One of each is a path a prompt injection can use.
2 paths in this server alone from private data, through text someone else wrote, to a way out. Denying 1 outbound tool breaks every one.
- Reads private data1
- Reads files, mail, messages, databases, secrets, calendars or repositories.
- Reads text others write2
- Brings in text someone else can write: web pages, inbound email, messages, issues and comments.
- Can send data out1
- Can carry data to people or systems: it sends, posts or publishes, or takes a recipient, channel or URL.
{
"permissions": {
"deny": [
"mcp__hacker_news__post_comment"
]
}
}Other servers in the same agent add their own tools to these paths. Audit your whole setup to see them together.
Findings
Matches of fixed checks, with the text they matched.
No check matched anything in these tool definitions. That is not a safety guarantee.
History
Changes to its tool definitions and to its remote endpoint, newest first.
No change seen yet. Its tools are rescanned every day, and a remote endpoint is looked at once a week.
Install
Pinned to version 1.0.0. Values in angle brackets are yours to fill in.
claude mcp add --transport http hacker_news https://nova.civai.co/mcp/agents/mcp-hacker_newsclaude mcp add --transport http hacker_news https://nova.civai.co/mcp/agents/mcp-hacker_newsRun in a terminal.
Claude Code permissions
Allow the reads, ask before a change or a way out, deny the deletes. Paste into .claude/settings.json.
{
"permissions": {
"allow": [
"mcp__hacker_news__top_stories",
"mcp__hacker_news__new_stories",
"mcp__hacker_news__best_stories",
"mcp__hacker_news__get_item",
"mcp__hacker_news__get_user",
"mcp__hacker_news__browse_feed",
"mcp__hacker_news__search_stories",
"mcp__hacker_news__session_status"
],
"ask": [
"mcp__hacker_news__login",
"mcp__hacker_news__upvote",
"mcp__hacker_news__post_comment",
"mcp__hacker_news__submit_story"
],
"deny": []
}
}Tools that only read are allowed, tools that change things ask first, tools that delete or cancel are denied. A read that can send data out (it takes a URL, say) asks first too. It assumes the server is installed as hacker_news. Review it before you use it.
Capability tags behind 3 rules
- mcp__hacker_news__get_item private-data, untrusted-input
- mcp__hacker_news__browse_feed untrusted-input
- mcp__hacker_news__post_comment outbound
Pin
Keep the decision: fail CI when the tools change, follow every change, or show a badge.
Pin in CI
Fail a build when the tools you reviewed are not the tools the server serves today.
curl -s "https://anlyon.dev/api/v1/servers/co.civai.nova/mcp-hacker_news/verify?hash=66f3053eec638369e6e24dabbb5c6666f4427cfa30746a0d280a5636bf63d386" | jq -e '.changed == false'Pinned hash 66f3053eec63, from Nov 2, 2026, 09:19 UTC.
Watch
Get told when its tools change: a new tool, a new description, a new class.
https://anlyon.dev/servers/co.civai.nova/mcp-hacker_news/changes.xmlAn Atom feed. Works in any feed reader or Slack's RSS app.
Badge
[](https://anlyon.dev/servers/co.civai.nova/mcp-hacker_news)Source: MCP Registry. Synced Nov 2, 2026, 09:17 UTC.